arm: v7: Kconfig: Rename CPU_V7 as CPU_V7A

Currently CPU_V7 kconfig symbol supports only ARMv7A architectures under
armv7 folder. This led to a misconception of creating separate folders
for armv7m and armv7r. There is no reason to create separate folder for
other armv7 based architectures when it can co-exist with few Kconfig
symbols.

As a first step towards a common folder, rename CPU_V7 as CPUV7A. Later
separate Kconfig symbols can be added for CPU_V7R and CPU_V7M and
can co exist in the same folder.

Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Suggested-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 4f043ca..c1f87f9 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -451,7 +451,7 @@
 	DCACHE_WRITEBACK = TTB_SECT | TTB_SECT_MAIR(2),
 	DCACHE_WRITEALLOC = TTB_SECT | TTB_SECT_MAIR(3),
 };
-#elif defined(CONFIG_CPU_V7)
+#elif defined(CONFIG_CPU_V7A)
 /* Short-Descriptor Translation Table Level 1 Bits */
 #define TTB_SECT_NS_MASK	(1 << 19)
 #define TTB_SECT_NG_MASK	(1 << 17)
@@ -493,7 +493,7 @@
 	MMU_SECTION_SIZE	= 1 << MMU_SECTION_SHIFT,
 };
 
-#ifdef CONFIG_CPU_V7
+#ifdef CONFIG_CPU_V7A
 /* TTBR0 bits */
 #define TTBR0_BASE_ADDR_MASK	0xFFFFC000
 #define TTBR0_RGN_NC			(0 << 3)